1 files changed, 0 insertions, 33 deletions
diff --git a/src/Chapter4/tweetlda/PorterStemmer.java b/src/Chapter4/tweetlda/PorterStemmer.java
deleted file mode 100644
index 1a7149e..0000000
--- a/src/Chapter4/tweetlda/PorterStemmer.java
+++ /dev/null
@@ -1,33 +0,0 @@
-package tweetlda;
-
-import cc.mallet.pipe.Pipe;
-import cc.mallet.types.Instance;
-import cc.mallet.types.TokenSequence;
-
-public class PorterStemmer extends Pipe {
-
-	private static final long serialVersionUID = 154100332101873830L;
-
-	public Instance pipe(Instance carrier){
-		TokenSequence ts = (TokenSequence) carrier.getData();
-		String word;
-		Stemmer s;
-		
-		for(int i = 0; i < ts.size(); i++){
-			word = ts.get(i).getText();
-			//stem the word
-			s = new Stemmer();
-			for(char ch : word.toCharArray()){
-				if(Character.isLetter(ch)){
-					s.add(ch);
-				}
-			}
-			s.stem();
-			ts.get(i).setText(s.toString());
-		}
-		carrier.setData(ts);
-
-		return carrier;
-	}
-
-}